Journal
SENSORS
Volume 21, Issue 21, Pages -Publisher
MDPI
DOI: 10.3390/s21217033
Keywords
wood drying; impregnated wood; pine wood; wood moisture content; wood resistance; moisture content; moisture meter resistance
Funding
- Polish National Agency for Academic Exchange (NAWA, Warsaw, Poland)
- Slovak Research and Development Agency
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The impregnation process of pine wood samples was found to have a significant impact on electrical resistance changes and moisture-content measurement accuracy. Impregnated wood samples with copper salt showed higher conductivity compared to nonimpregnated samples, especially when the wood moisture content was significantly above the Fibre Saturation Point (FSP).
The influence of the impregnation process of pine wood (Pinus sylvestris L.) samples on the electrical resistance changes and the moisture-content measurement accuracy is presented in this paper. In this study, the resistances of impregnated and nonimpregnated green pine timber harvested from northern Poland were compared. An impregnation method based on a vacuum-pressure chamber was used. Copper salts were applied as the impregnated solutions. The obtained results of the electrical resistance comparison showed a dependence of wood resistance on the moisture content. Higher conductivity occurred in impregnated wood samples filled with copper salt compared with wood samples without impregnation. Noticeable differences in the electrical resistance values were observed when the wood moisture content was significantly above the Fibre Saturation Point (FSP).
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